Titan supercomputer performs over 20,000 trillion calculations per second 30th October 2012 The U.S. Department of Energy's (DOE) Oak Ridge National Laboratory has just launched "Titan" – the fastest and most powerful supercomputer ever built.
This system can churn through over 20,000 trillion calculations per second – 20 petaflops – by using 18,688 nodes, each holding a 16-core AMD Opteron 6274 processor and an NVIDIA Tesla K20 graphics processing unit (GPU). Titan also has access to 700 terabytes of memory. This machine will be 10 times more powerful than Jaguar, the laboratory's previous world-leading system, while overcoming limitations of power and space inherent in the previous generation of high-performance computers. Titan, which is supported by the Department of Energy, will provide unprecedented computing power for research in energy, climate change, nanotechnology, medicine and other areas, paving the way for a wide range of achievements in science and technology. The combined hybrid of central processing units (CPUs) and more recent graphics processing units (GPUs) allows Titan to occupy the same space as its predecessor while using only marginally more electricity. "Titan will allow scientists to simulate physical systems more realistically and in far greater detail," said James Hack, director of ORNL's National Center for Computational Sciences. "The improvements in simulation fidelity will accelerate progress in a wide range of research areas such as alternative energy and efficiency, identification and development of novel and useful materials and the opportunity for more advanced climate projections." Using a grid of 14-kilometre cells, the new system will be able to simulate up to five years per day of computing time, up from the three months or so that Jaguar was able to churn through in a day. For more information, visit Titan's official website.
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Late in the night Gholson came to the union captain's bedside for Miss Harper. Charlotte had sent him; the doctor had left word what to do if a certain patient's wound should re-open, and this had happened. The three had succeeded in stanching it, but Charlotte had prevailed upon Miss Harper to lie down, and the weary lady had, against all her intentions, fallen asleep. I was alone with the wounded captain. He did not really sleep, but under the weight of his narcotics drowsed, muttered, stirred, moaned, and now and then spoke out. "You're right, Sam," said George Bynes, who had hit up many a century for his town in bygone days, "tain't cricket. Else it's a[Pg 28] fluke; the man didn't ought to be allowed to hold bat in his hand. It's spoiling other folks' sport." But the Clockwork man made no reply. He stood in the middle of the stage and slowly[Pg 96] lifted a finger to his nose. The Curate's doubts returned. Something seemed to occur to him as he examined his companion more closely. "You haven't been taking anything, my good man, have you? Anything of an alcholic nature?" Walk equal courses in their yearly round, I. ¡°There was no need. She had taken only the imitations¡ªthe ones you found.¡± ¡°It¡¯s funny,¡± Jeff remarked. ¡°This-here psychology I¡¯ve read about ain¡¯t so far wrong when it says that folks who gets the wrong slant on a thing comes to believe it so strong that even the truth looks like a fib to them.¡± Then he began to come to himself and to listen to all that Felipa had to tell him of the many things she had not put in her short and labored letters. He saw[Pg 140] that she looked more beautiful and less well than when he had left her. There was a shadow of weariness on her face that gave it a soft wistfulness which was altogether becoming. 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She wondered if Cairness had been able to get the cut alfalfa covered. Then she took the kittens with her to the house and went into the kitchen, where the Chinese cook already had a fire in the stove. She ordered coffee and toast to be made at once, and leaving the kittens in the woodbox near the fire, went back to the sitting room. She gave a dry little sob of unutterable glad relief and tried to raise her voice and call to him, the call they used for one another when they rode about the ranch. But the sound was only a weak, low wail. "Yes; you're in nice shape to send to the guardhouse. I'd sent you there quick enough if you were well, for telling me such a preposterous lie. You've usually paid more respect to my intelligence by telling me stories that I could believe if I wanted to, as I usually wanted do; but this is too much." "And then something happened," Dr. Haenlingen said tightly. "I know." It was quite dark when they reached Eggs Hole, and parted after kisses no longer as shy as they used to be. The year wore on. Kimberley and Ladysmith were relieved. Rye hung out its flags, and sang "Dolly Grey" louder than ever. Then Mafeking was saved, and a bonfire was lit up at Leasan House, in which a couple of barns and some stables were accidentally involved. Everyone wore penny medallion portraits of officers¡ªRoberts and Baden-Powell were the favourites at Odiam, which nearly came to blows with Burntbarns over the rival merits of French. While Reuben himself bought a photograph of Kitchener in a red, white, and blue frame. "The wife of a vassal would not have taste enough to buy such as these; and there is but one about Winchcombe who could work so well. And, by my faith, I now remember that it was part of the tenure by which I some time since granted land, to present a pair of gloves.¡ªWas it not a fair-looking damsel, one Stephen Holgrave's wife, that brought them?" John Ball pressed on with the multitude; but the immediate proximity of the palace, where all was splendour and motion, was not to the liking of one who till that day had never even dreamed of such things as had now met his sight. His nerves were weak, and he felt irritated at the insolence with which the royal guards, and the pages of the nobles, drove back the populace. His body, too, was weak, and he felt exhausted with his long and fatiguing walk: slowly and sadly he at length retraced his steps to his humble dwelling in the Minories. HoMEÐÂÏÊÏã·¹µê¾©´ó·µêµç»° ENTER NUMBET 0016www.feillo.com.cn